CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities
Net loss	$ (3,077,000)	$ (2,587,000)
Adjustment to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	239,000	278,000
Amortization of right of use assets	277,000	320,000
Gain on foreign currency remeasurement	(48,000)	(1,000)
Issuance of common stock for compensation		26,000
Amortization of stock options		38,000
Allowance for credit losses	(4,000)	(36,000)
Changes in operating assets and liabilities:
Accounts receivable	80,000	425,000
Inventories	250,000	(284,000)
Prepaids and other assets	(562,000)	660,000
Accounts payable	1,107,000	1,867,000
Accrued liabilities	704,000	606,000
Operating lease liabilities	(260,000)	(335,000)
Customer deposits	1,126,000	(99,000)
Deferred pension liability and other	69,000	(441,000)
Net cash (used in) provided by operating activities	(99,000)	437,000
Cash flows from investing activities
Purchases of property, plant and equipment	(4,000)	(277,000)
Net cash used in investing activities	(4,000)	(277,000)
Cash flows from financing activities
Proceeds of long-term debt		200,000
Payments of long-term debt	(5,000)	(200,000)
Net cash used in financing activities	(5,000)
Effect of exchange rate changes	(1,000)	(2,000)
Net (decrease) increase in cash, cash equivalents and restricted cash	(109,000)	158,000
Cash, cash equivalents and restricted cash at beginning of year	385,000	48,000
Cash, cash equivalents and restricted cash at end of period	276,000	206,000
Supplemental disclosure of cash flow information:
Interest paid	14,000	23,000
Income taxes paid	6,000	10,000
Current assets
Cash and cash equivalents	76,000	6,000
Long-term assets
Restricted cash	200,000	200,000
Cash, cash equivalents and restricted cash at end of period	$ 276,000	$ 206,000